Weak tradeoff between xylem safety and xylem-specific hydraulic efficiency across the world's woody plant species

Weak tradeoff between xylem safety and xylem-specific hydraulic efficiency across the world's woody plant species

No claim to US government works. New Phytologist © 2015 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 209(2016), 1 vom: 16. Jan., Seite 123-36
1. Verfasser: Gleason, Sean M (VerfasserIn)
Weitere Verfasser: Westoby, Mark, Jansen, Steven, Choat, Brendan, Hacke, Uwe G, Pratt, Robert B, Bhaskar, Radika, Brodribb, Tim J, Bucci, Sandra J, Cao, Kun-Fang, Cochard, Hervé, Delzon, Sylvain, Domec, Jean-Christophe, Fan, Ze-Xin, Feild, Taylor S, Jacobsen, Anna L, Johnson, Daniel M, Lens, Frederic, Maherali, Hafiz, Martínez-Vilalta, Jordi, Mayr, Stefan, McCulloh, Katherine A, Mencuccini, Maurizio, Mitchell, Patrick J, Morris, Hugh, Nardini, Andrea, Pittermann, Jarmila, Plavcová, Lenka, Schreiber, Stefan G, Sperry, John S, Wright, Ian J, Zanne, Amy E
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't cavitation embolism hydraulic conductivity mean annual precipitation mean annual temperature xylem Water 059QF0KO0R
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100 1 |a Gleason, Sean M  |e verfasserin  |4 aut 
245 1 0 |a Weak tradeoff between xylem safety and xylem-specific hydraulic efficiency across the world's woody plant species 
264 1 |c 2016 
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500 |a Date Completed 27.09.2016 
500 |a Date Revised 30.09.2020 
500 |a published: Print-Electronic 
500 |a CommentIn: New Phytol. 2016 Jan;209(1):8-10. - PMID 26625343 
500 |a Citation Status MEDLINE 
520 |a No claim to US government works. New Phytologist © 2015 New Phytologist Trust. 
520 |a The evolution of lignified xylem allowed for the efficient transport of water under tension, but also exposed the vascular network to the risk of gas emboli and the spread of gas between xylem conduits, thus impeding sap transport to the leaves. A well-known hypothesis proposes that the safety of xylem (its ability to resist embolism formation and spread) should trade off against xylem efficiency (its capacity to transport water). We tested this safety-efficiency hypothesis in branch xylem across 335 angiosperm and 89 gymnosperm species. Safety was considered at three levels: the xylem water potentials where 12%, 50% and 88% of maximal conductivity are lost. Although correlations between safety and efficiency were weak (r(2)  < 0.086), no species had high efficiency and high safety, supporting the idea for a safety-efficiency tradeoff. However, many species had low efficiency and low safety. Species with low efficiency and low safety were weakly associated (r(2)  < 0.02 in most cases) with higher wood density, lower leaf- to sapwood-area and shorter stature. There appears to be no persuasive explanation for the considerable number of species with both low efficiency and low safety. These species represent a real challenge for understanding the evolution of xylem 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a cavitation 
650 4 |a embolism 
650 4 |a hydraulic conductivity 
650 4 |a mean annual precipitation 
650 4 |a mean annual temperature 
650 4 |a xylem 
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700 1 |a Westoby, Mark  |e verfasserin  |4 aut 
700 1 |a Jansen, Steven  |e verfasserin  |4 aut 
700 1 |a Choat, Brendan  |e verfasserin  |4 aut 
700 1 |a Hacke, Uwe G  |e verfasserin  |4 aut 
700 1 |a Pratt, Robert B  |e verfasserin  |4 aut 
700 1 |a Bhaskar, Radika  |e verfasserin  |4 aut 
700 1 |a Brodribb, Tim J  |e verfasserin  |4 aut 
700 1 |a Bucci, Sandra J  |e verfasserin  |4 aut 
700 1 |a Cao, Kun-Fang  |e verfasserin  |4 aut 
700 1 |a Cochard, Hervé  |e verfasserin  |4 aut 
700 1 |a Delzon, Sylvain  |e verfasserin  |4 aut 
700 1 |a Domec, Jean-Christophe  |e verfasserin  |4 aut 
700 1 |a Fan, Ze-Xin  |e verfasserin  |4 aut 
700 1 |a Feild, Taylor S  |e verfasserin  |4 aut 
700 1 |a Jacobsen, Anna L  |e verfasserin  |4 aut 
700 1 |a Johnson, Daniel M  |e verfasserin  |4 aut 
700 1 |a Lens, Frederic  |e verfasserin  |4 aut 
700 1 |a Maherali, Hafiz  |e verfasserin  |4 aut 
700 1 |a Martínez-Vilalta, Jordi  |e verfasserin  |4 aut 
700 1 |a Mayr, Stefan  |e verfasserin  |4 aut 
700 1 |a McCulloh, Katherine A  |e verfasserin  |4 aut 
700 1 |a Mencuccini, Maurizio  |e verfasserin  |4 aut 
700 1 |a Mitchell, Patrick J  |e verfasserin  |4 aut 
700 1 |a Morris, Hugh  |e verfasserin  |4 aut 
700 1 |a Nardini, Andrea  |e verfasserin  |4 aut 
700 1 |a Pittermann, Jarmila  |e verfasserin  |4 aut 
700 1 |a Plavcová, Lenka  |e verfasserin  |4 aut 
700 1 |a Schreiber, Stefan G  |e verfasserin  |4 aut 
700 1 |a Sperry, John S  |e verfasserin  |4 aut 
700 1 |a Wright, Ian J  |e verfasserin  |4 aut 
700 1 |a Zanne, Amy E  |e verfasserin  |4 aut 
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